linux-kernel - [PATCH 0/5] Add support for IBRS & IBPB KVM support.

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Date:   Thu, 11 Jan 2018 17:32:14 -0800
From:   Ashok Raj <ashok.raj@...el.com>
To:     linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Tim Chen <tim.c.chen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Greg KH <gregkh@...uxfoundation.org>
Cc:     Ashok Raj <ashok.raj@...el.com>,
        Dave Hansen <dave.hansen@...el.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Arjan Van De Ven <arjan.van.de.ven@...el.com>,
        David Woodhouse <dwmw@...zon.co.uk>,
        Peter Zijlstra <peterz@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Jun Nakajima <jun.nakajima@...el.com>,
        Asit Mallick <asit.k.mallick@...el.com>
Subject: [PATCH 0/5] Add support for IBRS & IBPB KVM support.

The following patches are based on v3 from Tim Chen

https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1582043.html

This patch set supports exposing MSR_IA32_SPEC_CTRL and MSR_IA32_PRED_CMD
for user space.

Thomas is steam blowing v3 :-).. but I didn't want to keep holding this
much longer for the rebase to be complete in tip/x86/pti.

Ashok Raj (4):
  x86/ibrs: Introduce native_rdmsrl, and native_wrmsrl
  x86/ibrs: Add new helper macros to save/restore MSR_IA32_SPEC_CTRL
  x86/ibrs: Add direct access support for MSR_IA32_SPEC_CTRL
  x86/feature: Detect the x86 feature Indirect Branch Prediction Barrier

Paolo Bonzini (1):
  x86/svm: Direct access to MSR_IA32_SPEC_CTRL

 arch/x86/include/asm/cpufeatures.h |  1 +
 arch/x86/include/asm/msr-index.h   |  3 +++
 arch/x86/include/asm/spec_ctrl.h   | 29 +++++++++++++++++++++-
 arch/x86/kernel/cpu/spec_ctrl.c    | 19 ++++++++++++++
 arch/x86/kvm/cpuid.c               |  3 ++-
 arch/x86/kvm/svm.c                 | 51 ++++++++++++++++++++++++++++++++++++++
 arch/x86/kvm/vmx.c                 | 51 ++++++++++++++++++++++++++++++++++++++
 arch/x86/kvm/x86.c                 |  1 +
 8 files changed, 156 insertions(+), 2 deletions(-)

-- 
2.7.4